em65570sagh ELAN Microelectronics Corp, em65570sagh Datasheet - Page 23

• Manufacturer Part Number: em65570sagh
• Description: 68com/98seg 65k Color Stn Lcd Drivers
• Manufacturer: ELAN Microelectronics Corp

7
Product Specification (V1.0) 04.18.2006
(This specification is subject to change without further notice)
Function Description
7.1 MPU Interface
7.1.1 Reset Pin Description (RESB)
Holding the RESB low for at least 150µs, then EM65570S accept this reset command.
7.1.2 Interface Type Selection
The EM65570S transfers data through 8-bit parallel I/O (D7-D0), 16-bit parallel I/O
(D15-D0) or serial data input (SDA, SCL)
select by state of P/S pin
performed, only data writing can operate.
7.1.3 Parallel Input
When parallel interface is selected with the P/S pin, the EM65570S allows data to be
transferred in parallel to an 8-bit/16-bit MPU through the data bus
MPU, either the 80-family MPU interface or the 68-family MPU interface can be
selected with the M86 pin.
7.1.4 Read/Write functions of Register and display RAM
The EM65570S have four read/write functions at parallel interface mode
read/write function selecting by combinations of RS, RDB and WRB signals.
P/S
M86
H
L
RS
H
L
1
1
0
0
I/F Type
Parallel
Serial
68-family MPU
80-family MPU
68-family
MPU Type
R/WB
1
0
1
0
CSB
CSB
CSB
.
RS
RS
RS
When serial interface is selected, data reading cannot be
RDB
0
1
0
1
CSB
CSB
CSB
RESB
80-family
RDB
RDB
T
-
L
> 150 uS
RS
RS
RS
WRB
68COM/98SEG 65K Color STN LCD Drivers
WRB
WRB
.
1
0
1
0
-
The parallel interface or serial interface can
RDB
RDB
E
M86
M86
-
Read internal Register
Write internal Register
Read display data
Write display data
R/WB
WRB
SDA
WRB
SDA
-
Function
SCL
SCL
-
.
D7~D0 (D15~D0)
D0~D7 (D15~D0)
For the 8-bit/16-bit
D7~D0 (D15~D0)
Data
.
EM65570S
Each
Data
-
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